Question

17. The expression x2 - 12x + 36 represents the

area of a rectangular chalkboard. What is the factored
form of the expression? If each factor represents the
height and width of the chalkboard, what is the most
specic description of its shape?
A.(x-6), square
c B. (X - 5)(x + 6); rectangle
C. (x + 5)2: square
D. (x - 12): square

Answer 1

A

Find two numbers that multiply to 36 and add to -12. Those two numbers are -6 and -6, making the factored form (x-6)(x-6) or (x-6)^2